Trace number 1595736

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SAT07 reference solver: March KS 2007-02-08SAT 1.58776 1.58827

General information on the benchmark

NameCRAFTED/sgi/
satsgi-n19himBHm22-p0-q181.cnf
MD5SUMdbe5f8e172b94635975a076b30fdb515
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
Satisfiable
(Un)Satisfiability was proved
Number of variables418
Number of clauses8170
Sum of the clauses size16720
Maximum clause length22
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 28151
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 519

Solver Data 

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.02	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.02	c main()::
0.00/0.02	c initFormula():: searching for DIMACS p-line....
0.00/0.02	c full lookahead due to high density!
0.00/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 418 variables and 8170 clauses.
0.00/0.02	c parseCNF():: parsing....
0.00/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.02	c runParser():: parsing was successful, warming up engines...
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 418 free variables and 8170 clauses.
0.00/0.02	c stat :: sign balance is biased by 36.937
0.00/0.02	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.02	c using k-SAT heuristics (size based diff)
0.00/0.02	c longest clause has size 22
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c main():: clause / variable ratio: ( 8170 / 418 ) = 19.55
0.00/0.02	c longest clause has size 22
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c dynamic_preselect_setsize :: on
0.00/0.02	c suggested doublelook initial :: 0
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
1.49/1.58	c solution bin :: .00000000000000000000000000000000
1.49/1.58	c direction branchin :: current_rights = 0
1.49/1.58	
c |
1.49/1.58	c
1.49/1.58	c main():: nodeCount: 288
1.49/1.58	c main():: dead ends in main: 0
1.49/1.58	c main():: lookAheadCount: 28996
1.49/1.58	c main():: unitResolveCount: 418
1.49/1.58	c main():: time=1.580000
1.49/1.58	c main():: necessary_assignments: 0
1.49/1.58	c main():: bin_sat: 0, bin_unsat 0
1.49/1.58	c main():: doublelook: #: 6538, succes #: 0
1.49/1.58	c main():: doublelook: overall 22.559 of all possible doublelooks executed
1.49/1.58	c main():: doublelook: succesrate: 0.000, average DL_trigger: 1.257
1.49/1.58	c main():: SOLUTION VERIFIED :-)
1.49/1.58	s SATISFIABLE
1.49/1.58	v -1 -2 -3 -4 -5 -6 -7 -8 9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 -37 -38 39 -40 -41 -42 -43 -44 -45 -46 -47 -48 -49 -50 -51 -52 -53 -54 55 -56 -57 -58 -59 -60 -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 -74 -75 -76 -77 -78 -79 -80 -81 -82 -83 -84 -85 -86 -87 88 -89 -90 -91 -92 -93 -94 -95 -96 -97 -98 -99 -100 -101 -102 -103 104 -105 -106 -107 -108 -109 -110 -111 -112 -113 -114 -115 -116 -117 -118 -119 -120 -121 -122 123 -124 -125 -126 -127 -128 -129 -130 -131 -132 -133 -134 -135 -136 -137 -138 -139 -140 -141 -142 -143 -144 -145 -146 -147 -148 -149 -150 -151 152 -153 -154 -155 -156 -157 -158 -159 -160 -161 -162 -163 -164 -165 -166 -167 -168 -169 -170 -171 172 -173 -174 -175 -176 -177 -178 -179 -180 -181 -182 -183 -184 -185 -186 -187 -188 -189 -190 -191 -192 -193 -194 195 -196 -197 -198 -199 -200 -201 -202 -203 -204 -205 -206 -207 -208 -209 -210 -211 -212 213 -214 -215 -216 -217 -218 -219 -220 -221 222 -223 -224 -225 -226 -227 -228 -229 -230 -231 -232 -233 -234 -235 -236 -237 -238 -239 -240 -241 -242 -243 -244 -245 -246 -247 -248 -249 -250 -251 252 -253 -254 -255 -256 -257 -258 -259 -260 -261 -262 -263 -264 -265 -266 -267 -268 -269 270 -271 -272 -273 -274 -275 -276 -277 -278 -279 -280 -281 -282 -283 -284 -285 -286 -287 -288 -289 -290 -291 -292 -293 -294 -295 -296 -297 -298 -299 300 -301 -302 -303 -304 -305 -306 -307 -308 -309 -310 -311 312 -313 -314 -315 -316 -317 -318 -319 -320 -321 -322 -323 -324 -325 -326 -327 -328 -329 -330 331 -332 -333 -334 -335 -336 -337 -338 -339 -340 -341 -342 -343 -344 -345 -346 -347 -348 -349 -350 -351 -352 -353 -354 -355 -356 -357 -358 -359 -360 -361 -362 -363 -364 -365 -366 -367 -368 -369 -370 -371 -372 373 -374 -375 -376 -377 -378 -379 -380 -381 382 -383 -384 -385 -386 -387 -388 -389 -390 -391 -392 -393 -394 -395 -396 -397 -398 399 -400 -401 -402 -403 -404 -405 -406 -407 -408 -409 -410 -411 -412 -413 -414 -415 -416 -417 -418 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1595736-1239280672/watcher-1595736-1239280672 -o /tmp/evaluation-result-1595736-1239280672/solver-1595736-1239280672 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1595736-1239280672.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 31082
/proc/meminfo: memFree=1326688/2055920 swapFree=4179432/4192956
[pid=31082] ppid=31080 vsize=788 CPUtime=0
/proc/31082/stat : 31082 (march_ks) R 31080 31082 30907 0 -1 4194304 110 0 0 0 0 0 0 0 18 0 1 0 1200732792 806912 96 1992294400 134512640 135019032 4294956240 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/31082/statm: 197 96 47 123 0 72 0

[startup+0.0606791 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 31082
/proc/meminfo: memFree=1326688/2055920 swapFree=4179432/4192956
[pid=31082] ppid=31080 vsize=1836 CPUtime=0.05
/proc/31082/stat : 31082 (march_ks) R 31080 31082 30907 0 -1 4194304 396 0 0 0 5 0 0 0 18 0 1 0 1200732792 1880064 289 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/31082/statm: 459 289 72 123 0 334 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1836

[startup+0.101686 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 31082
/proc/meminfo: memFree=1326688/2055920 swapFree=4179432/4192956
[pid=31082] ppid=31080 vsize=1836 CPUtime=0.09
/proc/31082/stat : 31082 (march_ks) R 31080 31082 30907 0 -1 4194304 396 0 0 0 9 0 0 0 18 0 1 0 1200732792 1880064 289 1992294400 134512640 135019032 4294956240 18446744073709551615 134538149 0 0 4096 0 0 0 0 17 0 0 0
/proc/31082/statm: 459 289 72 123 0 334 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1836

[startup+0.301719 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 31082
/proc/meminfo: memFree=1326688/2055920 swapFree=4179432/4192956
[pid=31082] ppid=31080 vsize=1836 CPUtime=0.29
/proc/31082/stat : 31082 (march_ks) R 31080 31082 30907 0 -1 4194304 396 0 0 0 29 0 0 0 19 0 1 0 1200732792 1880064 289 1992294400 134512640 135019032 4294956240 18446744073709551615 134526896 0 0 4096 0 0 0 0 17 0 0 0
/proc/31082/statm: 459 289 72 123 0 334 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1836

[startup+0.701787 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 31082
/proc/meminfo: memFree=1326688/2055920 swapFree=4179432/4192956
[pid=31082] ppid=31080 vsize=1836 CPUtime=0.69
/proc/31082/stat : 31082 (march_ks) R 31080 31082 30907 0 -1 4194304 396 0 0 0 69 0 0 0 23 0 1 0 1200732792 1880064 289 1992294400 134512640 135019032 4294956240 18446744073709551615 134538051 0 0 4096 0 0 0 0 17 0 0 0
/proc/31082/statm: 459 289 72 123 0 334 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1836

[startup+1.50192 s]
/proc/loadavg: 0.99 0.97 0.69 2/65 31083
/proc/meminfo: memFree=1325720/2055920 swapFree=4179432/4192956
[pid=31082] ppid=31080 vsize=1836 CPUtime=1.49
/proc/31082/stat : 31082 (march_ks) R 31080 31082 30907 0 -1 4194304 397 0 0 0 149 0 0 0 25 0 1 0 1200732792 1880064 290 1992294400 134512640 135019032 4294956240 18446744073709551615 134538620 0 0 4096 0 0 0 0 17 0 0 0
/proc/31082/statm: 459 290 72 123 0 334 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1836

Solver just ended. Dumping a history of the last processes samples

Child status: 10
Real time (s): 1.58827
CPU time (s): 1.58776
CPU user time (s): 1.58376
CPU system time (s): 0.003999
CPU usage (%): 99.9676
Max. virtual memory (cumulated for all children) (KiB): 1836

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.58376
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 407
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 5

runsolver used 0.006998 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node25 at 2009-04-09 14:37:52
IDJOB=1595736
IDBENCH=71180
IDSOLVER=559
FILE ID=node25/1595736-1239280672
PBS_JOBID= 9115457
Free space on /tmp= 65712 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n19himBHm22-p0-q181.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1595736-1239280672/watcher-1595736-1239280672 -o /tmp/evaluation-result-1595736-1239280672/solver-1595736-1239280672 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1595736-1239280672.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= dbe5f8e172b94635975a076b30fdb515
RANDOM SEED=56602113

node25.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.263
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.263
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1327168 kB
Buffers:         38228 kB
Cached:         609132 kB
SwapCached:       7344 kB
Active:          31728 kB
Inactive:       624540 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1327168 kB
SwapTotal:     4192956 kB
SwapFree:      4179432 kB
Dirty:            3252 kB
Writeback:           0 kB
Mapped:          14604 kB
Slab:            58516 kB
Committed_AS:  3796096 kB
PageTables:       1464 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65712 MiB
End job on node25 at 2009-04-09 14:37:54